is this one ok ???http://www.newegg.com/product/product.aspx?Item=N82E16817153058 (i know it's not available online right now)there is another one from fsp that have two 12V rails : one with 16 and the other with 18 A is any of those ok for my PC :HD 4870AMD phenom II X4 965 BEGIGABYTE GA-790XT-USB3 AM3 AMD 790X USB 3.0 ATX AMD Motherboard